| 200 / | HD | ELECTRICITY: CIRCUIT MAKERS AND BREAKERS |
|
| 52 R |  | SPECIAL APPLICATION {25} |
| 56 R | DF | .~> Indicating instrument {1} |
| 60 | DF | .~> Portable light |
| 61 | DF | .~> Incubator |
| 61.01 | DF | .~> Sound wave responsive |
| 61.02 | DF | .~> Light responsive |
| 61.03 | DF | .~> Gas or smoke responsive |
| 61.04 | DF | .~> Liquid or moisture responsive {2} |
| 61.08 | DF | .~> Frangible or destructible type |
| 61.09 | DF | .~> Tramp metal actuated |
| 61.1 | DF | .~> Game or amusement piece operated {1} |
| 61.12 | DF | .~> Bicycle chain, sprocket or brake actuated |
| 61.13 | DF | .~> Running length, web or strand actuated {4} |
| 61.19 | DF | .~> Movable or removable interposed non-conductor |
| 61.2 | DF | .~> Container contents level responsive {1} |
| 61.22 | DF | .~> Pneumatic tire inflation responsive {3} |
| 61.27 | DF | .~> Turn indicator type switches {3} |
| 61.39 | DF | .~> Control by direction of rotation of shaft or spindle |
| 61.4 | DF | .~> Diameter responsive (e.g., wear) |
| 61.41 | DF | .~> Stationary feeler detects transient object |
| 61.42 | DF | .~> Feeler moves into detecting contact with object {2} |
| 61.45 R | DF | .~> Change of inclination or of rate of motion responsive (e.g., inertia and tilt switches) {6} |
| 61.54 | DF | .~> Steering wheel, shaft or column mounted {2} |
| 61.58 R | DF | .~> Actuated concurrently with operation or use of art device {8} |
| 61.93 | DF | .~> Anti-intrusion type |
| 52 A | DF | .~> Tilting vehicle operated |